1.2K views · 14 reactions | Staff from the Natural History Museum of Los Angeles County's Mineralogy Lab are discovering how minerals can be used in health care, to clean up the environment and even to find life on other planets. In this clip, Dr. Aaron Celestian explains one of the practical aspects of his work. Watch the full episode: https://www.youtube.com/watch?v=44BXfaC_6R8 | County of Los Angeles | Facebook

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